The utility is looking to save a further 1000 megawatts through reduced use by both large and residential customers.
Medupi delays have led to the utility forking out nearly R2-billion in penalties to supplier Exxaro.
Polite compliments and vagueness mask the rumblings of political disquiet at the power utility.
Power utility Eskom has been dealt another blow with the resignation of its chief executive Brian Dames, who will leave the company in March 2014.
Eskom could use another firm to work alongside Alstom if the latter does not install software for the Medpui plant's boilers on time, say reports.
Many Medupi workers have been sent off site after protests, but the utility was working to get operations back to normal, says Eskom.
This week on the M&G Newsroom, we'll look at why Oupa Magashula had to resign, whether Eskom can keep the lights on, and what the new cabinet means.
A six month delay in electricity generation at the Medupi power station will hit the country's poorest households the hardest, says Mamphela Ramphele.
Eskom has been "on the back foot" of its Medupi power station project from the get-go, says its financial director, Paul O'Flaherty.
National Union of Metal Workers SA has proposed one centralised negotiation for wage disputes at Eskom's Medupi, Kusile and Ingula projects.
As the world debates about how safe and cost-effective nuclear power is, Dirk de Vos focuses in on SA and other power source options for the country
Striking workers at the Medupi power station in Limpopo are expected to return work, says the National Union of Metalworkers of South Africa.
A tough road lies ahead for SA's plan to use local expertise in its massive infrastructure programme.
Compliance notices have been issued against sand miners in Lephalale. Their operations must now stop or they will face legal action.
Medupi's strategic importance has outweighed all attempts to save the stricken Mokolo River.
Privatisation is mooted as the utility's proposed tariff hikes look set to put the squeeze on users. Lynley Donnelly reports.
Eskom has called for the speedy resolution of strikes affecting the mining of coal, in times of an already strained electricity supply.
In the tiny town of Lephalale in Limpopo, finding and keeping work is far more difficult than President Zuma recently made it sound.
At a high-profile "pressure test" at the Medupi power plant, President Jacob Zuma was upstaged by the local mayor, writes Daniel Bethencourt.